Comments on: DIY javascript stack trace

By: Fritz Schenk

Fritz Schenk — Wed, 16 Sep 2009 21:16:42 +0000

Happy to report that it works in IE6 and IE8
Thanks for the great code.

By: sebasd

sebasd — Sun, 30 Aug 2009 17:14:17 +0000

I get a parse error when running “Function.prototype.getName = function()” under Safari. The reg expression is not accepted.

I changed:

var exp = /^function ([^\s(]+).+/|>;

To:

var exp = /^function ([^\s(]+).+/;

Maybe a typo because the code snippet was parsed by the Website ?

Thanks, this function is usefull by itself :

function myFunction()
{
var myCaller = myFunction.caller.getName();
}

By: Ganja

Ganja — Wed, 31 Dec 1969 19:00:00 +0000

Thanks for the clean implementation/examples! Very useful.

By: UUDIBUUDI

UUDIBUUDI — Wed, 31 Dec 1969 19:00:00 +0000

Good stuff! One suggestion to make it work in a .HTA file (W2k3, IE7):

in the function getSignature I get an error when it is apparently processing a TypeError, which has no arguments. Hence theFunction.arguments doesn't seem to exist and javascript throws a nice error there. I changed it into this:

if (theFunction.arguments) {
for (...) {
}
}

and it worked like a charm.

By: Henadzi

Henadzi — Wed, 31 Dec 1969 19:00:00 +0000

Great thx for the example! I think that creating javascript stack trace is a fantastic!

By: TJ

TJ — Wed, 31 Dec 1969 19:00:00 +0000

nice stuff. Unfortunately looping endlessly on recursive function calls.

By: Lee

Lee — Wed, 31 Dec 1969 19:00:00 +0000

It does fall over if an invalid argument is being passed into a function – theFunction.arguments.length is 1, say, but theFunction.arguments[ 0 ] is null. In this case, adding “if ( nextArgument == null ) nextArgument = ‘?’” will give a sensible output.

By: zeeman

zeeman — Wed, 31 Dec 1969 19:00:00 +0000

Thx for this great code!